Gold-panning machine



Apr; 10, 1923;

1,451,567 C. .E. ERICKSON ET AL GOLD PANNING MACHINE Filed Nov. 26,1921 2 sheets-sheet 1 i N i;

ll grwewloz L. E'. Erzz'kaon.

C. E. ERICKSON ET AL GOLD PANNING MACHINE Filed Nov. 26, 1921 2 sheets-sheet 2 i i a q IH j Snow W01 :1 I i r v u 1 CE Eric/r5072 M.JM5Z.

Patented Apr. 10, 1923.

.TES

- CHARLES E. nmcxsomor DELTA, UTAH, ANDMATTHEW JAMES MAST, or GRAND -COLORAIDO. i I v I UNITED JUNCTION,

PA N OFFICE.

GoLn-rANNING MACHINE. g i

' Application filed November 2e, 192,1. Serial No 151173868.

To all whom tmay concern: I

Be it knownthat. we, C'HaRLEs E. EnronsoN, residing at Delta, in the county of Millard and State of Utah,-and MATTHEW J. Mas'r, residing at GrandJunction, in the county of Mesa and State'of Colorado, both citizens of the United States, have invented certain new and useful Improvements in Gold-Panning Machines; and we do hereby declare the followin to be a full, clear, and

exact description the invention, such as will enable others skilled in the art to which. it appertains to make and use the same.

This invention relates to apparatus for separating precious metal, such as' gold,

from the medium containing the same and designed chiefly for recovering the gold from sand.

The invention provides an apparatus for separating fine gold, inclusive of flour gold, from sand which has run through a sluice box and screen, the apparatus includes a substantial frame, a pan or elongated shallow box supported on the frame by hangers and having a corrugated copper bottom amalgamated on its upper side and containing deflectors and means for imparting a vibratory and jarringmotion to the pan.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood. While the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming a part of the specification,

Figure 1 is a side view of a gold panning machine embodying the invention,

Figure 2' is a vertical central longitudinal section thereof,

Figure 3 is a top plan View of' the same,

Figure lis an end view,

Figure 5 a transverse section on the line 5-5 of Figure 3, and t Figure 6 is a sectional detail of the bumper.

Corresponding and like parts are referred to in the following description and. designated in the severalviews of the drawings by like reference characters.

' The apparatus or machine comprises a movement thereto.

right 51, the several parts, being braced and [connected in any, preferred way. A pan or boxiis mounted upon the frame to admit of a reciprocatory movement being imparted thereto. Hangersfi connectthe' opposite end portions of the pan or box. 5 witliithe uprights 2 and 4. A transverse shaft 7 mounted upon the'base portion 1 of the frame is provided'with a plurality of "ca portions 8 which are in cooperative relation with the "substantial frame including a: base 1, the I "uprights -2 and 3 and an intermediate upor box to insure positive agitation of the material passing therethrough so as to effect separation of the precious metal from the pan. The material is'supplied to the pan or box 5 by means of a sluice 10 and the tail ings escape by means of a chute or outlet 11.

The pan or box comprises an elongated frame of rectangular form having a bottom. of sheet copper which is transversely corrugated to form upwardly curved portions 12 and depressions 13. The relatively for ward portions of the upwardly curved part 12 are gradually curved whereas the rear portions are abrupt whereby to provide aquick descent for the material which facilitatesthe separation of the precious metal therefrom. Moreover by having the rear portions abrupt they offer a greater resistance to the return of the material at each forward movement of the pan or box. The hangers 6 have a relative disposition to, normally hold the pan in engagement with the bumper 9. The cams or tappets 8 move the pan or box 5 forwardly and upon clean. ing the pan the latter returns to normal position by gravitative action the impact being sustained by the bumper .9 and the resultant jar serving to advance the material over the upwardly curved portions 12 of r the bottom of the pan. The material agitated and advanced thereby materially assists in separating the metal from the sand.

thereby compelling any flour :gold to. be moved downwardly-in order 'to pass by the baflies or deflectors. The upper surface of the copper bottom is coatedwith amalgam whereby to absorb and separate the particles of gold from the sand or other material containing the sames The spent water and tailings pass off through the outlet 11.

The pan is provided with cross piece 15 which is engaged by the tappets 8, the latter consisting of projections at the outer edges of diskslG secured tothe shaft 7.

The bumper9'inay be of any construction and, as shown, it consists o't'animpact piece 5 a having a stein upon which is fitted a s'pring b enclosed ina guide The stem 01 the impact piece a operates in an opening cl formed in the upright Having'thus described the invention. what we claim is I Ascparator of the character specifiedcomuprising a frame, a pan having a corrugated copper bottom coated upon its upper side with amalgam deflectors in the upper portion of the pan in line with the depressions 1 between the upwardly curved portions of the corrugations, hangers forming suspendingmeans between the pan and frame and normally inclined to the vertical, means for imparting an intimate forward movement to thepan and a bumper for sustaining the impact'of the pan upon its return movement and imparting a jar thereto.

In testimony whereof-we afiix our signatures in the presence. of witnesses.

Vitnesses to the signature of Matthew J ames Mast: I

HENRY R. RHoNn, E. O. 'REYNOLDS. 

